Assays

Library-Matched Single Shot (LMSS) method Mice were sacrificed by cervical dislocation and brains were subsequently extracted and put into cold phosphate buffered saline (PBS). The ventricular walls were laid bare by removing the dorsal ventricular wall and all tissue above it, as well as the choroid plexus. Brains were then snap-frozen on dry ice and cut into 100 μm sections on a cryostat (Leica CM1000S). The medial (MEZ) and lateral ventricular (SEZ) walls were then manually dissected under a ...

For proteomic analysis, iPSC-derived neural stem cells at day 15 of culture were treated with 3.3 uM Nocodazole (Sigma) or same volume of DMSO (control) before being washed with ice-cold PBS, scrapped and centrifuged for 10 min at 300 g before lysis in Buffer A, containing 50 mM Tris-HCL (pH 7.5), 150 mM NaCl, 1 mM EDTA, 1 mM EGTA, 1% Triton-X100, 0.1% SDS, protease inhibitor (Pierce), at a volume twice that of the pellet. For neurons, day 40 of cultures treated only with DMSO were used. Samples ...

Dissection of ventral pial cerebral vessels: Mice were anesthetized with Ketamine (100 mg/kg) and Xylazine (10 mg/kg) and transcardially perfused with 20 ml PBS, followed by 2 ml of 2% Evan’s blue (w/v) prepared in PBS. After brain harvest, pial vessels were collected from the ventral face of the brain with micro forceps under a M205 A dissection microscope (Leica) and snap frozen on dry ice. Lysis of cerebral vessels. Vessels were mixed with 4% (w/v) SDS, 100 mM dithiothreitol, 100 mM Tris–HCl, ...

APEX2-mediated biotinylation of cells was carried out as described before (Hung et al., 2016). In brief, cells were supplemented with 500 µM biotin-phenol (IrisBiotech) for 30 min at 37°C before addition of 1 mM H2O2 at room temperature. Cells were then first washed with quencher solution (1 mM sodium azide, 10 mM sodium ascorbate and 5 mM Trolox in DPBS), then with DPBS, scraped and harvested. All steps were carried out at 4°C unless stated otherwise. Cells were washed and suspended in homogenization ...

Comparative small RNA expression profiling analysis for four transgenic mouse models ( C9orf72, SOD1, TDP-43 and FUS) of ALS with each 5 males/females and 5 case/control samples. For FUS one male control sample was excluded.

Comparative gene expression profiling analysis of RNA-seq data for four transgenic mouse models ( C9orf72, SOD1, TDP-43 and FUS) of ALS with each 5 males/females and 5 case/control samples. For FUS one male control sample was excluded.